Rotary engine.



Patented Oct. 30, I900. G. l. WILLIAMS.

ROTARY ENGINE.

(Application filed Feb. 12, 1900.)

WITNESSES I //V VENTOI? size of the wheel.

UNITED STATES PATENT OFFICE.

CHARLES I. WILLIAMS, OF DAYTON, OHIO.

ROTARY ENGINE.

SPECIFICATION forming part of Letters Patent No. 660,675, dated. October30, 1900. Application filed February 12, 1900- Serial No. 4,917. (Nomodel.)

To all whom it may concern:

Be it known that I, CHARLES I. WILLIAMS, a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Rotary Engines; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to improvements in rotary engines, and possessesthe useful and novel features hereinafter described and claimed.

The object of my invention is to provide a successful rotary engine thatmay be operated by any of the well-known powers-such as steam,compressed air, gas, or gasolene and in which the force is applieddirectly to the piston-wheel at or near the outer circumference.

In a detailed description of the invention reference is made to theaccompanying drawings, of which- Figure 1 is a side sectional elevationof my improved rotary engine with the outer casing removed. Fig. 2 is atransverse or vertical section of the same.

In the following specification similar reference-letters indicatecorresponding parts in the drawings.

A designates the base of the engine, and B is a semicylindrical casingsecured thereto, the two forming a chamber in which is mounted apiston-wheel O on shaft D, the position of the shaft, and likewise theaxis of the piston-wheel, being eccentric to the center of the chamber.The periphery of the piston wheel is provided with a series of cams E,the number of which may be varied according to the These cams controlthe admission-valve G, which is normally pressed against said cams bymeans of a coil-spring c. A series of pistons or flanges F are carriedon the piston-wheel at points adjacent to the highest parts of the cams.These pistons are bifurcated at their connecting ends to provide twoprojecting portions, which extend on each side of the wheel 0, and saidpistons F are made adjustable in and out from the axis of the wheel bymeans ofset-screws ct, such adjustment being necessary in order that thepistons may be in proper contact with the bottom of the air-tightchamber H when passing therethrough. The said air-tight chamber H isformed in the base, but may be formed elsewhere within the casing. As isshown in the drawings, this chamber has adjustable side walls J, which.may be adjusted to snugly fit the sides of the pistons by means ofset-screws b. This air-tight chamber occupies a portion of thecircumference of the piston-Wheel and extends from a suitable pointabove or beyond the inlet-passage e to the exhaust-passage d. The powerenters the port f, and when the valve G is in a position with its port 1registering with the passage e the power passes into the air-tightchamber H and, coming in contact successively with each of the flangesF, causes a rotation of the cam-wheel and shaft. As thegradually-increasing surface of each of the cams E rides against theinner end of the admission-valve G the power is momentarily shut offfrom the passage 6, during which time the chamber I-I exhausts throughpassage d, and as the lower surface of the next following cam approachesthe valve G said valve is permitted to move in under the pressure ofspring 0, at which time the portt' therein registers with the passage 6.valve G is held against the cams E at all times by the spring 0 andforms a wall closing the end of the air-tight chamber H and receives allthe back pressure, so that the power is enabled to exert its full forceon the pistons to drive the wheel in the direction indicated by thearrows. This feature of the valve forming an inclosing Wall for the endof the chamber is an important feature of my invention.

It will be observed that the cams or flanges E and cam-wheel O areonlyin frictional contact with other parts while they are passingthrough the air-tight chamber H and that said chamber I-I approximatesonly about one third of the circumference of the cam-wheel. It willtherefore be seen that the friction is reduced to a minimum. Ihave shownthe The side Walls .I of the air-tight chamber H as adjustable. Thepistons F may also be made non-adjustable.

Having described my invention, I claim.

1. In a rotary engine, the combination of a piston-wheel having cams, aninlet-valve controlled by said cams, an air-tight chamber Withinthecasing, and pistons or flanges car- Tied by said piston-wheel and whichreceive the pressure as they enter said air-tight chamber, said pistonsor flanges projecting over the sides of the piston-wheels, and means foradjusting the said pistons or flanges, substantially as specified.

2. In a rotary engine, the combination with a casing, and an air-tightchamber formed therein, ofa piston-Wheel, cams on said wheel, aninlet-valve operated by said cams to admit pressure to said air-tightchamber, and pistons or flanges carried by said wheel, said pistons 01'flanges having extensions which project on each side of thepiston-wheel, and the said pistons and wheel adapted to form air-tightinclosures for said chamber and the pistons receiving pressure from theadmission-valve as theyenter said chamber and means for adj ustingthepositions of said pis tight chamber and forming a wall for one end ofthe air-tight chamber, cams on the pistonwheel controlling the positionof said valve, and pistons carried on said wheel and receiving pressureas they enter the air-chamber said pistons having bifurcations orextensions which project on each side of the wheel, and means foradjusting said pistons, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES I. WILLIAMS.

Witnesses:

J OHN W. KALBFUS, R. J. McOARTY.

